winchester



UNTTED STATES PATENT r(Hflil'CE.

H. S. HALL, A. D. HUNT, AND C. J. WINGHESTER, OF JAMESTOVN, NEV YORK,ASSIGNORS TO H. S. HALL, A. D'. HUNT, AND C. E. JEFFORDS.

MACHINE FOR TAPERING STICKS.

Specification of Letters Patent No. 23,570, dated April 12, 1859.

To all whom it may concern:

Be it known that we, H. S. HALL, A. D. HUNT, and CHARLES J. VVrNoHEsTER,all of Jamestown, in the county of Chautauqua and State of New York,have invented a new and Improved Machine for Rounding or FinishingScythe-Snathes; and we do hereby declare that the following is a full,clear, and eXact description of the same, reference being had to theannexed drawings, making a part of this speciiication, in which Figurel, is a back view of our invention in elevation. Fig. 2, is a verticalsection of do, taken in the line a', Fig. l. Fig. 3, is a detached sideview of the levers to which the shafts of the feed rollers areconnected. Fig. 4, is a detached front view of the feed rollers andcylinder.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention consists in the employment or use of a. hollow rotatingcylinder' provided with radial sliding bearings and one or more cuttersand two feed rollers, operated automatically from the driving or powershaft, substantially as hereinafter fully shown and described, wherebythe snathes after being properly steamed and bent may be expeditiouslyfinished orrounded or cut in taper form.

To enable those skilled in the art to fully understand and construct ourinvention we will proceed to describe it.

A, represents a framing which may be constructed in any proper way tosupport the working parts.

B, is the driving shaft placed in the lower part of the framing A.

C, is a hollow cylinder which is placed in the upper part of the framingA, and fit-ted between three pairs of friction wheels a, a, a, which arethe bearings of the cylinder. A belt b, passes around a pulley c, on thedriving shaft B, and also around the cylinder C.

l/Vithin the cylinder C, a ring or annular plate D, is placedconcentrically and allowed to slide freely on guide pins cl, securedwithin the cylinder horizontally and having spiral springs e, placed onthem which bear against the inner side of the ring or plate D, and havea tendency to force it out from the interior of the cylinder, see Fig.2. To the ring or annular plate D, three projections f, f, j, areattached. These projections are grooved at the outer sides and work onguides g, at the inner side of the cylinder C. The inner surfaces of theprojections f, are inclined and bear against the outer ends of slides7L, which are fitted radially in slots in the face t, of the cylinder C.Each slide It, has a spring t', bearing against it which springs have atendency to keep the slides thrust outward from the center of the faceof the cylinder.

To the inner ends of two of the slides z, plates j, are attached, one toeach. These plates are made concave at their edges and serve asbearings. To the inner end of the other slide z., a cutter 7e, isattached of gouge form.

At the center of the face 7L', of the cyliir der C, a circular openingZ, is made, and against the back side of the ring or plate D, a rollerm, bears, said roller being at the end of a bar E, which is fittedloosely and allowed to slide on rods 1L, n, in the framing A. Each rodn, having a spiral spring o, on it, which springs have a tendency tokeep the bar E, and roller m, thrust outward toward the back part of theframing A.

To the back side of the bar E, a roller p, is attached, see dotted linesin Fig. 2, and this roller bears against an inclined bar g, the upperend of which is connected by a joint to a slide s, which is fittedbetween vertical guides t, t, attached to the back of the framing A.Through the lower part of the bar g, a sector rod u, passes, and a setscrew o, passes into the lower end of the bar and enables the bar to beset at any angle of inclination within the scope of its movement.

To the outer side of the slide s, a rack a', is attached, and into thisrack a pinion J, gears, said pinion being on a shaft F, at the back ofthe framing. The outer end of shaft F, is connected by bevel wheels c',with a shaft G, having a worin wheel rl, (see dotted lines Fig. l) atone end, into which wheel a screw e, gears. a shaft f, which isconnected by bevel wheels g, with a shaft L, that is driven by a beltfrom the driving shaft B. The shaft f, has a pinion j', placed on it,which pinion gears into a toothed wheel 7u', that is placed on alongitudinal shaft H, which extends the whole length of the framing A,and has one of its bearings in a lever l, attached to the framing by apivot Z.

On the shaft H, and directly in front of The screw e', is on 1 the holeor aperture Z, of the face L, a feed roller m, is placed, andpermanently attached. rliis feed roller is of double conical forni asshown cle-arly in F ig. 1l, and it is corrugated longitudinally.Directly belowr the shaft H, and in the saine plane a shaft J is placed,said shaft having a similar roller m, attached. One end of the shaft J,has its bearings in a vlever l, Which is precisely similar to the leverl, and is pivoted to the framing A., at n. The ends of the levers I, I,opposite to the ends that are pivotedtotlie framing are tted loosely ona rod L, on which spiral springs 0, are

placed, said springs bearing against the levers I, l, and having atendency to keep the levers toward each other.

The operation is as follows z-Motion is given the shaft B, in any propermanner and the cylinder C, is rotated by the belt I), and the feedrollers mr, m, are rotated through the medium of the gearing hereinbefore described. The snathe shown in red is placed between the rollersm, m, the small end foremost and said rollers feed the snathe throughthe opening Z, of the face h', of the cylinder and between the bearingsj, j, and cutter c, the latter cutting the snathe in round taper formand the slides 72 of the bearings and cutter gradually expandingcorresponding to the desired taper to be given the snathe in consequenceof the gradual elevation of the inclined bar g, and through the mediumof the rack a', and pinion Z2', said ybar actu-y ates the bar E, andtheroller m, pressing the plate D, inward` The taper or longitudinalprofile form of the snathe may be modified as desired by varying theposition of the bar g, and also its form. The rollers m', m, present thesnathe at right angles to the cutter so that it Will be rounded andfinished in precisely the same form as originally bent, the rollers inconsequence of their double conical form preventing the snathe movinglaterally out of proper position.

rlthis machine performs the desired Work very expeditiously and in aperfect manner. lf desired an additional cutter may be used as asmoother.

Having thus described our invention What We claim as new and desire tosecure by Letters Patent, is,-

The rotating cylinder C, provided with the adjustable bearings y', j',and cutter 7L', Y

one or more, when said bearings and cutter are operated through themedium of the plate D, bar E, With inclined bar g, attached and the rackand pinion a, b, in connection with the springs e, or their equivalentssub-` stantially as described.

H. S. HALL. A. D. HUNT. C. J. VVINCHESTER. Witnesses:

W. H. FENTON, W. I. LoUoKE. v

